[yocto] meta-ide-support toolchain & Recipe-specific Sysroots

[Mircea Gliga]

Hi

I ended up not to use meta-ide-support, but instead I've added the 
support of generating the toolchain to my own recipe (my component): 
that is my final intention, to be able to also build my component 
outside Yocto.
So when I do a `bitbake my-component` beside building the component, the 
toolchain necessary to build the component outside Yocto is also generated.

In my recipe I've added some of the code from the meta-ide-support:

     inherit toolchain-scripts

     do_populate_ide_support () {
       toolchain_create_tree_env_script
     }
     addtask populate_ide_support before do_build after do_install

And now when I build my recipe I also get a environment-setup script in 
the build/tmp/ directory - same location as the meta-ide-toolchain used 
before.
Now everything is setup correctly:
OECORE_NATIVE_SYSROOT is set to 
[...]/build/tmp/work/cortexa5hf-neon-poky-linux-gnueabi/component/1.0/recipe-sysroot-native 

Also all the dependencies are there.

Cheers.


On 01/02/18 13:39, Mircea Gliga wrote:
> I have a problem starting from the rocko upgrade and related to the 
> Recipe-specific Sysroots introduced in Yocto 2.3
>
> Our project uses cmake. So out recipe has:
> DEPENDS = "cmake-native [...]"
>
> So cmake ends up in 
> build/tmp/work/cortexa5hf-neon-poky-linux-gnueabi/component/1.0-r0/recipe-sysroot-native/usr/bin/cmake
> So when building inside yocto everything is ok.
>
> When we build outside yocto, we use the cross-toolchain generated and 
> populated within the Build Directory:
>   $ bitbake meta-ide-toolchain
> and then source the environment:
>   $ source build/tmp/environment-setup-cortexa5hf-neon-poky-linux-gnueabi
>
> On rocko OECORE_NATIVE_SYSROOT is set to 
> [...]/build/tmp/work/cortexa5hf-neon-poky-linux-gnueabi/meta-ide-support/1.0-r3/recipe-sysroot-native 
> - which doesn't have cmake:
>   $ which cmake
>   $ /no cmake found/
>
> And on Krogoth it was build/tmp/sysroots/x86_64-linux - cmake is there:
>   $ which cmake
>   <full path>/build/tmp/sysroots/x86_64-linux/usr/bin/cmake
>
>
> How can I add it to my toolchain so that I can also build outside yocto ?
>
> Thanks in advance !
>
> Regards
>
>
>

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